Aitch-bone

of beef. Corruption of “Naitch-bone,” i.e. the
haunch-bone (Latin, nates, a haunch or buttock).

Similarly, “an apron” is a corruption of a
napperon; “an adder” is a
corruption of a nadder (Old Eng.,
næddre). In other words, we have
reversed the order; thus “a newt” is an
ewt , “a nag” is an
ög (Danish). Latin,
eq[uus], a horse.